Electrochemical technique for paper mill effluent degradation using concentric aluminum tube electrodes (CATE ) .

Autor: Bhagawati PB; Faculty of Engineering, Department of Civil Engineering, Annasaheb Dange College of Engineering and Technology, Ashta, Maharashtra 416301 India.; Faculty of Engineering, Department of Civil Engineering, Basaveshwar Engineering College, Bagalkot, Karnataka 587102 India., Shivayogimath CB; Faculty of Engineering, Department of Civil Engineering, Basaveshwar Engineering College, Bagalkot, Karnataka 587102 India.
Jazyk: angličtina
Zdroj: Journal of environmental health science & engineering [J Environ Health Sci Eng] 2021 Mar 14; Vol. 19 (1), pp. 553-564. Date of Electronic Publication: 2021 Mar 14 (Print Publication: 2021).
DOI: 10.1007/s40201-021-00627-8
Abstrakt: In this study, Taguchi experimental design was used to the optimize operating parameters for the degradation of paper mill effluent using electrochemical (EC) process with two-dimensional concentric aluminum tube electrodes (CATE). For this purpose, four significant experimental factors were used in four levels pH (6-9), electrolysis time (10-40 min), voltage (6-12 V) and surface area (357-624 cm 2 ). The process parameters were optimized, through performing L16 orthogonal array of Taguchi technique, for the removal of chemical oxygen demand (COD) and turbidity. The percent COD and turbidity reductions were transferred into an accurate S/N ratio for a larger value is the better (LBT) response. The study presents a unique method of finding optimum combination of process parameters to illustrate their effect on the turbidity and COD reduction. The treatment conditions for the maximum elimination of the pollutants were second level of pH (7), third level of ET (30 min), fourth level of voltage (12 V) and second level of surface area (446 cm 2 ). The confirmation experiment results were within the confidence intervals (CI) indicating an acceptable agreement between predicted and observed values. Based on the p- values, the electrolysis time and voltages were found to be the most significant factors for both COD and turbidity reduction. The findings of research indicated, that the Taguchi method can be used successfully for the treatment of paper industry effluent by electrochemical technique.
Competing Interests: Conflict of InterestThe authors would like to declare that there is no conflicts of interest regarding the publication of this paper.
(© Springer Nature Switzerland AG 2021.)
Databáze: MEDLINE
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